CA2191102A1 - Counterbalancing Mechanism for an Overhead Door - Google Patents
Counterbalancing Mechanism for an Overhead DoorInfo
- Publication number
- CA2191102A1 CA2191102A1 CA2191102A CA2191102A CA2191102A1 CA 2191102 A1 CA2191102 A1 CA 2191102A1 CA 2191102 A CA2191102 A CA 2191102A CA 2191102 A CA2191102 A CA 2191102A CA 2191102 A1 CA2191102 A1 CA 2191102A1
- Authority
- CA
- Canada
- Prior art keywords
- spring
- door
- winding
- gear
- winds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/041—Wound springs with means for modifying the spring characteristics
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1207—Counterbalance devices with springs with tension springs
- E05D13/1215—Counterbalance devices with springs with tension springs specially adapted for overhead wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1207—Counterbalance devices with springs with tension springs
- E05D13/1223—Spring safety devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
- E05D13/1261—Counterbalance devices with springs with canted-coil torsion springs specially adapted for overhead wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
- E05D13/10—Counterbalance devices
- E05D13/12—Counterbalance devices with springs
- E05D13/1253—Counterbalance devices with springs with canted-coil torsion springs
- E05D13/1269—Spring safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/14—Torsion springs consisting of bars or tubes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/16—Suspension arrangements for wings for wings sliding vertically more or less in their own plane
- E05D15/24—Suspension arrangements for wings for wings sliding vertically more or less in their own plane consisting of parts connected at their edges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
- E05Y2201/47—Springs; Spring tensioners
- E05Y2201/492—Spring tensioners, tension sensors
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2201/00—Constructional elements; Accessories therefore
- E05Y2201/60—Suspension or transmission members; Accessories therefore
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/644—Flexible elongated pulling elements; Members cooperating with flexible elongated pulling elements
- E05Y2201/658—Members cooperating with flexible elongated pulling elements
- E05Y2201/668—Pulleys; Wheels
- E05Y2201/67—Pulleys; Wheels in tackles
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2400/00—Electronic control; Power supply; Power or signal transmission; User interfaces
- E05Y2400/80—User interfaces
- E05Y2400/81—User displays
- E05Y2400/818—User displays with visual display
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/50—Mounting methods; Positioning
- E05Y2600/52—Toolless
- E05Y2600/528—Hooking, e.g. using bayonets; Locking
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/50—Mounting methods; Positioning
- E05Y2600/52—Toolless
- E05Y2600/53—Snapping
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
- E05Y2600/60—Mounting or coupling members; Accessories therefore
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
- E05Y2800/40—Protection
- E05Y2800/424—Protection against unintended use
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
- F16F2236/04—Compression
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/01—Overhead door
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
- Y10S16/07—Door opening apparatus
Abstract
An overhead door apparatus (10) utilizing a torsion spring counterbalancing mechanism (30). The counterbalancing mechanism (30) includes a worm drive ring-shaped gear winding mechanism (38) for setting the appropriate torque or number of winds in the spring (32).
A counting mechanism (140) is provided to indicate to the installer the number of winds being given to the spring (32). Means are also provided for accommodating spring growth and contraction during winding and unwinding using the winding mechanism (38) and during normal raising and lowering of the door (12). A spring clip gear retainer (82) is disclosed for preventing rotation or creep of the worm drive gear (70) and spur gear (56) during normal raising and lowering of the door (12). A second embodiment is disclosed allowing more universal interchangeability of components between the left and right sides of the door system (200), easy snap-in assembly, and including a telescoping spring cover (252). Each embodiment includes a spring winding counter (140).
A counting mechanism (140) is provided to indicate to the installer the number of winds being given to the spring (32). Means are also provided for accommodating spring growth and contraction during winding and unwinding using the winding mechanism (38) and during normal raising and lowering of the door (12). A spring clip gear retainer (82) is disclosed for preventing rotation or creep of the worm drive gear (70) and spur gear (56) during normal raising and lowering of the door (12). A second embodiment is disclosed allowing more universal interchangeability of components between the left and right sides of the door system (200), easy snap-in assembly, and including a telescoping spring cover (252). Each embodiment includes a spring winding counter (140).
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/262,135 US5632063A (en) | 1994-06-16 | 1994-06-16 | Counterbalancing mechanism for an overhead door |
US262,135 | 1994-06-16 | ||
US435,586 | 1995-05-05 | ||
US08/435,586 US5636678A (en) | 1994-06-16 | 1995-05-05 | Counterbalancing mechanism for an overhead door |
PCT/US1995/007540 WO1995034733A1 (en) | 1994-06-16 | 1995-06-13 | Counterbalancing mechanism for an overhead door |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2191102A1 true CA2191102A1 (en) | 1995-12-21 |
CA2191102C CA2191102C (en) | 2000-01-25 |
Family
ID=26949046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002191102A Expired - Lifetime CA2191102C (en) | 1994-06-16 | 1995-06-13 | Counterbalancing mechanism for an overhead door |
Country Status (6)
Country | Link |
---|---|
US (2) | US5636678A (en) |
EP (1) | EP0765425B1 (en) |
AU (1) | AU2828195A (en) |
CA (1) | CA2191102C (en) |
DE (1) | DE69512058T2 (en) |
WO (1) | WO1995034733A1 (en) |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5636678A (en) * | 1994-06-16 | 1997-06-10 | Clopay Building Products Company, Inc. | Counterbalancing mechanism for an overhead door |
US5865235A (en) * | 1997-01-23 | 1999-02-02 | Overhead Door Corporation | Counterbalance mechanism for vertical opening door |
US5950701A (en) * | 1997-06-30 | 1999-09-14 | Exactocraft (Proprietary) Limited | Drive gear unit for vertical blind systems |
US6302179B1 (en) | 1998-01-16 | 2001-10-16 | James V. Miller | Modular roll-up partition system with tension adjustment mechanism |
US6263942B1 (en) | 1998-01-16 | 2001-07-24 | James V. Miller | Modular roll-up partition system with tension adjustment mechanism |
ATE313681T1 (en) * | 1998-03-28 | 2006-01-15 | Guenther Tore Gmbh | GATE SYSTEM FOR BUILDINGS |
US6134835A (en) * | 1998-06-12 | 2000-10-24 | Overhead Door Corporation | Counterbalance system for upward acting door |
US6327744B1 (en) | 1998-07-30 | 2001-12-11 | Industrial Door Co., Inc. | Roll-up door counterbalancing apparatus and method |
US6408925B1 (en) | 1998-07-30 | 2002-06-25 | Industrial Door Company, Inc. | Counterbalancing apparatus for roll-up door |
US6164014A (en) * | 1998-10-12 | 2000-12-26 | Wayne-Dalton Corp. | Cable control device for sectional overhead door |
US6263541B1 (en) | 1999-01-21 | 2001-07-24 | Windsor Door, Inc. | Winding cone of an overhead door counterbalancing mechanism and torsion spring winding method therefor |
US6125582A (en) * | 1999-05-17 | 2000-10-03 | Overhead Door Corporation | Spring winder support for door counterbalance system |
US6263947B1 (en) | 2000-01-21 | 2001-07-24 | Wayne-Dalton Corp. | Cable control device for sectional overhead door |
US6742564B2 (en) | 2000-04-12 | 2004-06-01 | Martin Door Manufacturing, Inc. | Spring force safety locking system for sectional doors |
US6401793B1 (en) * | 2000-04-12 | 2002-06-11 | Martin Door Manufacturing, Inc. | Spring force safety locking system for sectional doors |
USD434639S (en) * | 2000-05-19 | 2000-12-05 | Scott Willett | End bearing plate |
USD434304S (en) * | 2000-05-19 | 2000-11-28 | Scott Willett | End bearing plate |
US6554047B1 (en) * | 2000-07-06 | 2003-04-29 | Overhead Door Corporation | Guide track assemblies and mounting brackets for upward acting doors |
US6527035B2 (en) | 2000-07-06 | 2003-03-04 | Overhead Door Corporation | Guide track assemblies and mounting brackets for upward acting doors |
US6442897B1 (en) | 2000-07-27 | 2002-09-03 | Wayne-Dalton Corp. | Counterbalance system cable drum for sectional doors |
GB2369857B (en) * | 2000-12-05 | 2004-03-17 | Cardale Group Ltd | A tension adjuster |
US6796206B2 (en) * | 2001-03-15 | 2004-09-28 | Kuo-Hao Li | Working machine having a safety door |
US6672691B1 (en) | 2001-04-27 | 2004-01-06 | David A. Hoff | Control mechanism for tambour-style door closures |
US6644378B2 (en) | 2001-11-02 | 2003-11-11 | Wayne-Dalton Corp. | Tensioning device for a door system |
US6959751B2 (en) * | 2002-04-22 | 2005-11-01 | Canimex Inc. | Winding system, rolling door assembly including the same and kit for assembling the winding system |
US7686061B2 (en) * | 2002-04-24 | 2010-03-30 | Overhead Door Corporation | Winding assembly for door counterbalance system |
ITPD20030250A1 (en) * | 2003-10-17 | 2005-04-18 | Ballan Spa | SPRING SUPPORT FOR SECTIONAL DOOR. |
US7234502B2 (en) * | 2003-12-26 | 2007-06-26 | O'malley James J | Overhead door apparatus with enclosed counterbalance mechanism |
US20050189080A1 (en) * | 2004-02-26 | 2005-09-01 | Wayne-Dalton Corp. | Tensioning tool for a counterbalance system for sectional doors |
US7296607B2 (en) * | 2004-10-27 | 2007-11-20 | Overhead Door Corporation | Side mount counterbalance system for upward acting door |
US7254868B2 (en) * | 2004-12-27 | 2007-08-14 | Wayne-Dalton Corp. | winding and anti-drop assembly for door counterbalance system |
KR100667879B1 (en) * | 2005-05-06 | 2007-01-12 | 주식회사 대상테크롤 | Winding rate control device of gyration roll for reticulation |
EP1818488A1 (en) * | 2006-02-13 | 2007-08-15 | Pierre Meulders | Sectional door |
DE602007009636D1 (en) * | 2007-03-22 | 2010-11-18 | Flexi Force B V | sectional |
NL1036426C2 (en) * | 2009-01-15 | 2010-07-19 | Doco Internat B V | SECTIONAL DOOR SYSTEM. |
US8160287B2 (en) * | 2009-05-22 | 2012-04-17 | Vocollect, Inc. | Headset with adjustable headband |
US8375635B2 (en) | 2009-08-26 | 2013-02-19 | Richard Hellinga | Apparatus for opening and closing overhead sectional doors |
US8567567B1 (en) * | 2009-09-01 | 2013-10-29 | Ernest Scott Turner | Winding tool for torsion spring for sectional garage door |
US8936063B1 (en) | 2009-09-01 | 2015-01-20 | Ronald E. Turner | Garage door spring winding system |
CA2740523C (en) | 2010-05-26 | 2016-11-08 | Wabash National, L.P. | Overhead door assembly for a storage container |
US9296280B2 (en) | 2010-11-22 | 2016-03-29 | Wabash National, L.P. | Hinged bottom roller assembly and counterbalance mechanism for overhead door |
DK2720862T3 (en) | 2011-06-17 | 2016-09-19 | Fiberweb Inc | Vapor permeable, water impervious TOTAL MAJOR MULTI-LAYER ARTICLE |
WO2012178027A2 (en) | 2011-06-23 | 2012-12-27 | Fiberweb, Inc. | Vapor-permeable, substantially water-impermeable multilayer article |
DK2723568T3 (en) | 2011-06-23 | 2017-10-23 | Fiberweb Llc | Vapor permeable, essentially all water impermeable, multilayer |
US9765459B2 (en) | 2011-06-24 | 2017-09-19 | Fiberweb, Llc | Vapor-permeable, substantially water-impermeable multilayer article |
US9945586B2 (en) * | 2011-09-21 | 2018-04-17 | The University Of Western Ontario | Solar tracker |
US8893765B2 (en) | 2012-10-19 | 2014-11-25 | Clopay Building Products Company, Inc. | System for unevenly weighted sectional doors |
US20140265082A1 (en) * | 2013-03-14 | 2014-09-18 | Haldex Brake Products Corporation | Overhead Door Torsion Spring Adjuster |
US10180023B2 (en) | 2015-10-06 | 2019-01-15 | ASSA ABLOY Accessories and Door Controls Group, Inc. | Apparatus and method for control of spring force in a door closer or operator |
SG10201601222VA (en) * | 2016-02-18 | 2017-01-27 | Gliderol Doors S Pte Ltd | Improvements to stacking panel shutter doors |
US9708842B1 (en) * | 2017-01-10 | 2017-07-18 | Buena Vista Investments Ltd. | Garage door safety device |
US10975618B2 (en) * | 2017-07-26 | 2021-04-13 | Whole Space Industries Ltd | Slat tilt mechanism for window coverings |
WO2020200938A1 (en) * | 2019-03-29 | 2020-10-08 | Assa Abloy Entrance Systems Ab | A torsion spring system for a garage door and corresponding methods therefor |
US11536067B2 (en) * | 2019-07-01 | 2022-12-27 | Overhead Door Corporation | Spring array and method for door counterbalancing |
US11441345B2 (en) * | 2020-02-29 | 2022-09-13 | Hall Labs Llc | System for adjusting the counterbalance of an overhead door |
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US5636678A (en) * | 1994-06-16 | 1997-06-10 | Clopay Building Products Company, Inc. | Counterbalancing mechanism for an overhead door |
US5632063A (en) * | 1994-06-16 | 1997-05-27 | Clopay Building Products Company, Inc. | Counterbalancing mechanism for an overhead door |
-
1995
- 1995-05-05 US US08/435,586 patent/US5636678A/en not_active Expired - Lifetime
- 1995-06-13 EP EP95923860A patent/EP0765425B1/en not_active Expired - Lifetime
- 1995-06-13 CA CA002191102A patent/CA2191102C/en not_active Expired - Lifetime
- 1995-06-13 WO PCT/US1995/007540 patent/WO1995034733A1/en active IP Right Grant
- 1995-06-13 DE DE69512058T patent/DE69512058T2/en not_active Expired - Fee Related
- 1995-06-13 AU AU28281/95A patent/AU2828195A/en not_active Abandoned
-
1997
- 1997-05-01 US US08/846,891 patent/US5964268A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2191102C (en) | 2000-01-25 |
DE69512058T2 (en) | 2000-01-27 |
EP0765425B1 (en) | 1999-09-08 |
US5636678A (en) | 1997-06-10 |
US5964268A (en) | 1999-10-12 |
WO1995034733A1 (en) | 1995-12-21 |
AU2828195A (en) | 1996-01-05 |
DE69512058D1 (en) | 1999-10-14 |
EP0765425A1 (en) | 1997-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20150615 |